Slide 1 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pump RTF Sub-Committee September 28, 2011 Mira Vowles, P.E., CEM.

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Presentation transcript:

Slide 1 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pump RTF Sub-Committee September 28, 2011 Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency

Slide 2 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pumps (VC HP = VRF + DHP) + Ductless Heat Pumps Variable Refrigerant Flow Heat Pump System

Slide 3 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N SCE Upstream VRF Program Summary  Started in 2010  Distributers receive incentives  Energy Solutions administers program

Slide 4 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Upstream VRF Program Discussion Jeff Johnston, LEED AP Energy Solutions Project Manager

Slide 5 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Small Office VRF Savings Summary VRF HP Measure # Baseline SystemLocation (TMY)(kWh / ton) Gas Heat Offset (Therms / ton) Therm Savings ($) 1 Small Office ASHRAE System #3 (Packaged single zone AC with gas heat) Seattle1,46415$15 2 Small Office ASHRAE System #3 (Packaged single zone AC with gas heat) Spokane1,28842$42 3 Small Office ASHRAE System #4 (Packaged single zone heat pump) Seattle1,6510$0 4 Small Office ASHRAE System #4 (Packaged single zone heat pump) Spokane1,8880$0 Average 1,573 kWh

Slide 6 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Medium Office VRF Savings Summary VRF HP Measure # Baseline SystemLocation (TMY)(kWh / ton) Gas Heat Offset (Therms / ton) Therm Savings ($) 5 Medium Office ASHRAE System #5 (Packaged VAV with gas boiler reheat) Seattle62068$68 6 Medium Office ASHRAE System #5 (Packaged VAV with gas boiler reheat) Spokane45359$59 7 Medium Office ASHRAE System #6 (Packaged VAV with electric reheat) Seattle1,5960$0 8 Medium Office ASHRAE System #6 (Packaged VAV with electric reheat) Spokane1,8080$0 Average 1,119 kWh

Slide 7 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Small Office VRF Cost Effectiveness VRF HP Measure # Baseline System Location (TMY) Incr. Cost ($ / ton) BCR SPB (years) BPA Incentive ($) % Savings 1 Small Office ASHRAE System #3 (Packaged single zone AC with gas heat) Seattle $ % 2 Small Office ASHRAE System #3 (Packaged single zone AC with gas heat) Spokane $ % 3 Small Office ASHRAE System #4 (Packaged single zone heat pump) Seattle $ % 4 Small Office ASHRAE System #4 (Packaged single zone heat pump) Spokane $ % Average BCR 3.2 $343 60%

Slide 8 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Medium Office VRF Savings Summary VRF HP Measure # Baseline System Location (TMY) Incr. Cost ($ / ton) BCR SPB (years) BPA Incentive ($) % Savings 5 Medium Office ASHRAE System #5 (Packaged VAV with gas boiler reheat) Seattle $ % 6 Medium Office ASHRAE System #5 (Packaged VAV with gas boiler reheat) Spokane $9925.0% 7 Medium Office ASHRAE System #6 (Packaged VAV with electric reheat) Seattle $ % 8 Medium Office ASHRAE System #6 (Packaged VAV with electric reheat) Spokane $ % Average BCR 4.1 $240 33%

Slide 9 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N VRF Program Research Questions  Can whole building regression analysis be used to verify savings?  How can savings associated with changes to ventilation systems be verified cost- effectively?  How big of an effect do other baselines have on savings?  Other?

Slide 10 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N VRF Program Delivery Questions  Can this be a utility equipment rebate program, instead of an upstream program?  Limit to replacement on burn-out?  How to ensure replacement on burn-out?  Limit to baseline systems?  How to ensure baseline systems?  Other?